Rationale, Design, and Implications of Bifurcation Coronary Stenting: Insight from the Indian Bifurcation Stenting (IBIS) Registry

Background Bifurcation coronary stenting (BCS) has unique therapeutic challenges. Several BCS strategies are prescribed for treatment, with conflicting data, and which is the best strategy for optimal short-and long-term outcomes remains a matter of debate. There is no systematic data from an Indian perspective in regard to patterns of BCS and its outcomes. Methods and analysis The Indian Bifurcation Stenting (IBIS) registry is a prospective, nationwide, endpoint-driven, investigator initiated, multi-center, observational registry to compare the different bifurcation stent strategies, the effect of adjuvant techniques, and bifurcation anatomical differences in predicting short-and long-term clinical outcomes of bifurcation coronary interventions in India. A total of 1,000 patients from 20 clinical sites across the country will be enrolled in this study from September 2020 to August 2023. The primary endpoint will be the composite endpoint of major adverse cardiac events including cardiac death, target lesion myocardial infarction (MI), and ischemia-driven target lesion revascularization at the end of two years. The secondary endpoints include all causes of death, MI, target vessel revascularization, in-stent restenosis, stroke, and predefined procedural parameters. The safety endpoint is the occurrence of definite or probable stent thrombosis. Conclusion The aim of this prospective observational registry is to assess the practice patterns and clinical outcomes of patients undergoing coronary bifurcation lesion angioplasty in India. This will be extremely useful to provide an evidence-based insight as well as guidance to bifurcation angioplasty in India.